Because you like Yoshi in Super Mario Bros.
Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.
Just a hint of human emotion lurks under the enigmatic exterior of Rei Ayanami. See them in Neon Genesis Evangelion.
With an abundant supply of alcohol, nice restaurants, and free will, Crowley is a demon who is thoroughly enjoying his time on Earth. See them in Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch.
Success for Eggsy Unwin means joining Kingsman, and failure could mean death. See them in Kingsman: The Secret Service.
Nozomu's name translates to despair, which is fitting for him. See them in Sayonara, Zetsubo Sensei.
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
Rue is an icy prima ballerina whose obsession with perfection obscures a hidden desire to be loved. See them in Princess Tutu.
Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.
Don't underestimate Maggie Greene. She's a farm girl with a mission. See them in The Walking Dead.
Cosima Niehaus loves exploring the unknown. Even her own DNA is a puzzle, waiting to be unlocked. See them in Orphan Black.
A former child mayor fallen from grace, Ben Wyatt is still trying to pick up the pieces years later. See them in Parks and Recreation.